./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_10x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_10x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1e7360b510ceea1b4f190c67c2656c6deb0030b7718750b71696817135287b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:45:01,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:45:01,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:45:01,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:45:01,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:45:01,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:45:01,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:45:01,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:45:01,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:45:01,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:45:01,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:45:01,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:45:01,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:45:01,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:45:01,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:45:01,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:45:01,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:45:01,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:45:01,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:45:01,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:45:01,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:45:01,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:45:01,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:45:01,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:45:01,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:45:01,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:45:01,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:45:01,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:45:01,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:45:01,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:45:01,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:45:01,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:45:01,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:45:01,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:45:01,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:45:01,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:45:01,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:45:01,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:45:01,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:45:01,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:45:01,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:45:01,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:45:01,703 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:45:01,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:45:01,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:45:01,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:45:01,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:45:01,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:45:01,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:45:01,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:45:01,710 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:45:01,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:45:01,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:45:01,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:45:01,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:45:01,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:45:01,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:45:01,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:45:01,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:45:01,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:45:01,714 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:45:01,714 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:45:01,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:45:01,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:45:01,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:45:01,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:45:01,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:45:01,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:45:01,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:45:01,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:45:01,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:45:01,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:45:01,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:45:01,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:45:01,718 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:45:01,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:45:01,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:45:01,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b1e7360b510ceea1b4f190c67c2656c6deb0030b7718750b71696817135287b [2022-11-18 19:45:02,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:45:02,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:45:02,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:45:02,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:45:02,074 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:45:02,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive-simple/sum_10x0-2.c [2022-11-18 19:45:02,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/data/b75a76e04/7f1f96042f8d4d31a6cfa0f3063b03e6/FLAGaaf908074 [2022-11-18 19:45:02,593 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:45:02,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/sv-benchmarks/c/recursive-simple/sum_10x0-2.c [2022-11-18 19:45:02,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/data/b75a76e04/7f1f96042f8d4d31a6cfa0f3063b03e6/FLAGaaf908074 [2022-11-18 19:45:02,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/data/b75a76e04/7f1f96042f8d4d31a6cfa0f3063b03e6 [2022-11-18 19:45:02,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:45:02,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:45:02,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:45:02,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:45:02,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:45:03,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:45:02" (1/1) ... [2022-11-18 19:45:03,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a4a78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03, skipping insertion in model container [2022-11-18 19:45:03,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:45:02" (1/1) ... [2022-11-18 19:45:03,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:45:03,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:45:03,245 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/sv-benchmarks/c/recursive-simple/sum_10x0-2.c[481,494] [2022-11-18 19:45:03,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:45:03,254 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:45:03,269 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/sv-benchmarks/c/recursive-simple/sum_10x0-2.c[481,494] [2022-11-18 19:45:03,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:45:03,284 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:45:03,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03 WrapperNode [2022-11-18 19:45:03,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:45:03,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:45:03,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:45:03,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:45:03,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,326 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-18 19:45:03,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:45:03,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:45:03,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:45:03,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:45:03,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,355 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:45:03,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:45:03,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:45:03,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:45:03,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (1/1) ... [2022-11-18 19:45:03,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:45:03,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:03,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:45:03,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:45:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:45:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:45:03,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:45:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-18 19:45:03,439 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-18 19:45:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:45:03,505 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:45:03,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:45:03,654 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:45:03,660 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:45:03,660 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:45:03,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:45:03 BoogieIcfgContainer [2022-11-18 19:45:03,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:45:03,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:45:03,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:45:03,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:45:03,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:45:02" (1/3) ... [2022-11-18 19:45:03,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c96c778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:45:03, skipping insertion in model container [2022-11-18 19:45:03,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:03" (2/3) ... [2022-11-18 19:45:03,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c96c778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:45:03, skipping insertion in model container [2022-11-18 19:45:03,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:45:03" (3/3) ... [2022-11-18 19:45:03,672 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_10x0-2.c [2022-11-18 19:45:03,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:45:03,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 19:45:03,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:45:03,751 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e2e76e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:45:03,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:45:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:45:03,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:45:03,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:03,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:45:03,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:03,770 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-11-18 19:45:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:03,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585517932] [2022-11-18 19:45:03,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:03,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:04,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:04,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585517932] [2022-11-18 19:45:04,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585517932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:04,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:45:04,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:45:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815457094] [2022-11-18 19:45:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:04,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:45:04,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:45:04,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:45:04,149 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:04,417 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-18 19:45:04,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:45:04,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 19:45:04,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:04,429 INFO L225 Difference]: With dead ends: 54 [2022-11-18 19:45:04,429 INFO L226 Difference]: Without dead ends: 43 [2022-11-18 19:45:04,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:45:04,452 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:04,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 72 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:45:04,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-18 19:45:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2022-11-18 19:45:04,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:45:04,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-11-18 19:45:04,498 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2022-11-18 19:45:04,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:04,499 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-11-18 19:45:04,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-11-18 19:45:04,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:45:04,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:04,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:45:04,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:45:04,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2022-11-18 19:45:04,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:04,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630247323] [2022-11-18 19:45:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:04,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:04,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:04,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630247323] [2022-11-18 19:45:04,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630247323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:04,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:45:04,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:45:04,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674273183] [2022-11-18 19:45:04,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:04,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:45:04,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:45:04,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:45:04,568 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:04,625 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-18 19:45:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:45:04,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 19:45:04,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:04,627 INFO L225 Difference]: With dead ends: 38 [2022-11-18 19:45:04,627 INFO L226 Difference]: Without dead ends: 37 [2022-11-18 19:45:04,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:45:04,629 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:04,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 24 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:45:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-18 19:45:04,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-18 19:45:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.4) internal successors, (35), 31 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:45:04,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-18 19:45:04,639 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 6 [2022-11-18 19:45:04,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:04,639 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-18 19:45:04,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-18 19:45:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:45:04,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:04,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:45:04,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:45:04,641 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2022-11-18 19:45:04,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:04,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622621698] [2022-11-18 19:45:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:04,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:04,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622621698] [2022-11-18 19:45:04,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622621698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:04,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:45:04,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:45:04,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435953674] [2022-11-18 19:45:04,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:04,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:45:04,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:04,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:45:04,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:45:04,734 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:04,792 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2022-11-18 19:45:04,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:45:04,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 19:45:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:04,795 INFO L225 Difference]: With dead ends: 46 [2022-11-18 19:45:04,795 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 19:45:04,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:45:04,797 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:04,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:45:04,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 19:45:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-18 19:45:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:45:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-18 19:45:04,805 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 7 [2022-11-18 19:45:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:04,806 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-18 19:45:04,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-18 19:45:04,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:45:04,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:04,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:45:04,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:45:04,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:04,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash -881410885, now seen corresponding path program 1 times [2022-11-18 19:45:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:04,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020398030] [2022-11-18 19:45:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:04,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:04,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:04,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:04,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020398030] [2022-11-18 19:45:04,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020398030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:04,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193271686] [2022-11-18 19:45:04,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:04,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:04,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:04,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:04,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:45:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:05,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:45:05,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:05,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:45:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:05,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193271686] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:45:05,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:45:05,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-11-18 19:45:05,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103437465] [2022-11-18 19:45:05,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:45:05,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:45:05,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:45:05,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:45:05,332 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 18 states, 15 states have (on average 2.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:05,737 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2022-11-18 19:45:05,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:45:05,738 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:45:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:05,743 INFO L225 Difference]: With dead ends: 87 [2022-11-18 19:45:05,743 INFO L226 Difference]: Without dead ends: 69 [2022-11-18 19:45:05,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:45:05,754 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 151 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:05,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 205 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:45:05,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-18 19:45:05,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-18 19:45:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 50 states have internal predecessors, (56), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:45:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-18 19:45:05,767 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 13 [2022-11-18 19:45:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:05,767 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-18 19:45:05,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:05,768 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-18 19:45:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:45:05,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:05,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:45:05,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:05,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:05,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:05,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1323199908, now seen corresponding path program 1 times [2022-11-18 19:45:05,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:05,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592412677] [2022-11-18 19:45:05,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:05,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:06,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:06,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592412677] [2022-11-18 19:45:06,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592412677] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:06,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937858019] [2022-11-18 19:45:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:06,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:06,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:06,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:06,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:45:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:06,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:45:06,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:06,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:45:06,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937858019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:06,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:45:06,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-18 19:45:06,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225566599] [2022-11-18 19:45:06,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:06,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:45:06,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:06,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:45:06,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:45:06,306 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:06,390 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-18 19:45:06,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:45:06,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 19:45:06,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:06,393 INFO L225 Difference]: With dead ends: 62 [2022-11-18 19:45:06,393 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 19:45:06,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:45:06,398 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 43 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:06,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 44 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:45:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 19:45:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-18 19:45:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 49 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 19:45:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2022-11-18 19:45:06,421 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 16 [2022-11-18 19:45:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:06,421 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2022-11-18 19:45:06,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2022-11-18 19:45:06,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 19:45:06,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:06,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-18 19:45:06,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:06,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:06,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1760820046, now seen corresponding path program 1 times [2022-11-18 19:45:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:06,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571154933] [2022-11-18 19:45:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:06,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:06,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:06,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571154933] [2022-11-18 19:45:06,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571154933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:06,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696428636] [2022-11-18 19:45:06,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:06,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:06,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:06,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:06,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:45:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:06,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:45:06,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:06,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:45:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:06,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696428636] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:45:06,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:45:06,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-18 19:45:06,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489901829] [2022-11-18 19:45:06,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:45:06,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 19:45:06,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:06,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 19:45:06,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:45:06,990 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 19 states, 15 states have (on average 2.933333333333333) internal successors, (44), 12 states have internal predecessors, (44), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:07,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:07,203 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-11-18 19:45:07,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:45:07,205 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.933333333333333) internal successors, (44), 12 states have internal predecessors, (44), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 19:45:07,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:07,210 INFO L225 Difference]: With dead ends: 92 [2022-11-18 19:45:07,210 INFO L226 Difference]: Without dead ends: 91 [2022-11-18 19:45:07,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:45:07,213 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 132 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:07,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 150 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:45:07,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-18 19:45:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2022-11-18 19:45:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 69 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 7 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:45:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2022-11-18 19:45:07,237 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 22 [2022-11-18 19:45:07,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:07,237 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2022-11-18 19:45:07,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.933333333333333) internal successors, (44), 12 states have internal predecessors, (44), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2022-11-18 19:45:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 19:45:07,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:07,239 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-11-18 19:45:07,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:07,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:07,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:07,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:07,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1208760848, now seen corresponding path program 2 times [2022-11-18 19:45:07,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:07,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483149035] [2022-11-18 19:45:07,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:07,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:07,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:07,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483149035] [2022-11-18 19:45:07,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483149035] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:07,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55430758] [2022-11-18 19:45:07,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:45:07,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:07,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:07,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:07,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:45:07,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:45:07,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:45:07,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:45:07,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:07,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:45:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:08,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55430758] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:45:08,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:45:08,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-11-18 19:45:08,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545942797] [2022-11-18 19:45:08,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:45:08,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-18 19:45:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-18 19:45:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:45:08,289 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 36 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 21 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:08,988 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2022-11-18 19:45:08,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 19:45:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 21 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-18 19:45:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:08,990 INFO L225 Difference]: With dead ends: 159 [2022-11-18 19:45:08,990 INFO L226 Difference]: Without dead ends: 127 [2022-11-18 19:45:08,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=480, Invalid=2172, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 19:45:08,992 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 382 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:08,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 409 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:45:08,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-18 19:45:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2022-11-18 19:45:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 94 states have (on average 1.0851063829787233) internal successors, (102), 97 states have internal predecessors, (102), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 19:45:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2022-11-18 19:45:09,005 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 34 [2022-11-18 19:45:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:09,006 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2022-11-18 19:45:09,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 2.5454545454545454) internal successors, (84), 21 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2022-11-18 19:45:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 19:45:09,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:09,007 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1] [2022-11-18 19:45:09,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:09,213 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:09,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1182445582, now seen corresponding path program 2 times [2022-11-18 19:45:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:09,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321579452] [2022-11-18 19:45:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:09,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:09,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321579452] [2022-11-18 19:45:09,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321579452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:09,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177173070] [2022-11-18 19:45:09,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:45:09,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:09,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:09,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:09,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:45:09,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:45:09,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:45:09,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:45:09,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:09,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:45:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:10,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177173070] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:45:10,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:45:10,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2022-11-18 19:45:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348438520] [2022-11-18 19:45:10,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:45:10,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 19:45:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:10,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 19:45:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 19:45:10,081 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 35 states, 31 states have (on average 2.967741935483871) internal successors, (92), 20 states have internal predecessors, (92), 16 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:10,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:10,619 INFO L93 Difference]: Finished difference Result 180 states and 193 transitions. [2022-11-18 19:45:10,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 19:45:10,620 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 2.967741935483871) internal successors, (92), 20 states have internal predecessors, (92), 16 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-18 19:45:10,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:10,621 INFO L225 Difference]: With dead ends: 180 [2022-11-18 19:45:10,621 INFO L226 Difference]: Without dead ends: 179 [2022-11-18 19:45:10,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1741, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 19:45:10,623 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 373 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:10,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 364 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:45:10,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-18 19:45:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2022-11-18 19:45:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 134 states have (on average 1.1194029850746268) internal successors, (150), 137 states have internal predecessors, (150), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 19:45:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 182 transitions. [2022-11-18 19:45:10,651 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 182 transitions. Word has length 50 [2022-11-18 19:45:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:10,653 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 182 transitions. [2022-11-18 19:45:10,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 2.967741935483871) internal successors, (92), 20 states have internal predecessors, (92), 16 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 182 transitions. [2022-11-18 19:45:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-18 19:45:10,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:10,658 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2022-11-18 19:45:10,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 19:45:10,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 19:45:10,864 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash -448735504, now seen corresponding path program 3 times [2022-11-18 19:45:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651190154] [2022-11-18 19:45:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:10,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:11,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:11,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651190154] [2022-11-18 19:45:11,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651190154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288391534] [2022-11-18 19:45:11,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:45:11,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:11,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:11,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:45:11,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:45:11,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:45:11,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:45:11,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 19:45:11,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:45:11,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288391534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:11,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:45:11,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2022-11-18 19:45:11,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658562719] [2022-11-18 19:45:11,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:11,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:45:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:11,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:45:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:45:11,622 INFO L87 Difference]: Start difference. First operand 169 states and 182 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:11,716 INFO L93 Difference]: Finished difference Result 179 states and 193 transitions. [2022-11-18 19:45:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:45:11,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-18 19:45:11,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:11,722 INFO L225 Difference]: With dead ends: 179 [2022-11-18 19:45:11,722 INFO L226 Difference]: Without dead ends: 178 [2022-11-18 19:45:11,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=838, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 19:45:11,726 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:11,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:45:11,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-18 19:45:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2022-11-18 19:45:11,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 134 states have (on average 1.0820895522388059) internal successors, (145), 136 states have internal predecessors, (145), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 19:45:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2022-11-18 19:45:11,748 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 76 [2022-11-18 19:45:11,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:11,750 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2022-11-18 19:45:11,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:11,751 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2022-11-18 19:45:11,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 19:45:11,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:11,759 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-11-18 19:45:11,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:11,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:11,960 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:11,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:11,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1025898680, now seen corresponding path program 1 times [2022-11-18 19:45:11,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:11,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350400459] [2022-11-18 19:45:11,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:11,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:12,642 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 212 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:12,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:12,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350400459] [2022-11-18 19:45:12,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350400459] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:45:12,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076638720] [2022-11-18 19:45:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:12,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:45:12,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:12,645 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:45:12,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:45:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:12,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-18 19:45:12,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:45:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:45:13,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:45:13,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076638720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:13,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:45:13,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [24] total 30 [2022-11-18 19:45:13,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632936772] [2022-11-18 19:45:13,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:13,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:45:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:13,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:45:13,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-18 19:45:13,049 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand has 26 states, 24 states have (on average 2.75) internal successors, (66), 15 states have internal predecessors, (66), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:13,497 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2022-11-18 19:45:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 19:45:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.75) internal successors, (66), 15 states have internal predecessors, (66), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-18 19:45:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:13,502 INFO L225 Difference]: With dead ends: 178 [2022-11-18 19:45:13,502 INFO L226 Difference]: Without dead ends: 177 [2022-11-18 19:45:13,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-11-18 19:45:13,504 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:13,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 283 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:45:13,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-18 19:45:13,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 167. [2022-11-18 19:45:13,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 134 states have (on average 1.044776119402985) internal successors, (140), 135 states have internal predecessors, (140), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 19:45:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 172 transitions. [2022-11-18 19:45:13,522 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 172 transitions. Word has length 77 [2022-11-18 19:45:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:13,524 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 172 transitions. [2022-11-18 19:45:13,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.75) internal successors, (66), 15 states have internal predecessors, (66), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:13,524 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 172 transitions. [2022-11-18 19:45:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-18 19:45:13,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:13,529 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1] [2022-11-18 19:45:13,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:45:13,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:45:13,736 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1081620878, now seen corresponding path program 3 times [2022-11-18 19:45:13,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:13,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584399990] [2022-11-18 19:45:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:13,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 19:45:14,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:14,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584399990] [2022-11-18 19:45:14,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584399990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:14,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:45:14,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-18 19:45:14,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783678894] [2022-11-18 19:45:14,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:14,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 19:45:14,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:14,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 19:45:14,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-11-18 19:45:14,245 INFO L87 Difference]: Start difference. First operand 167 states and 172 transitions. Second operand has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 14 states have internal predecessors, (71), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:14,604 INFO L93 Difference]: Finished difference Result 202 states and 206 transitions. [2022-11-18 19:45:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 19:45:14,606 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 14 states have internal predecessors, (71), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-11-18 19:45:14,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:14,606 INFO L225 Difference]: With dead ends: 202 [2022-11-18 19:45:14,607 INFO L226 Difference]: Without dead ends: 112 [2022-11-18 19:45:14,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:45:14,608 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 163 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:14,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 214 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:45:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-18 19:45:14,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-11-18 19:45:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 89 states have (on average 1.0) internal successors, (89), 89 states have internal predecessors, (89), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:45:14,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 111 transitions. [2022-11-18 19:45:14,620 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 111 transitions. Word has length 106 [2022-11-18 19:45:14,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:14,621 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 111 transitions. [2022-11-18 19:45:14,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 14 states have internal predecessors, (71), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:14,622 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 111 transitions. [2022-11-18 19:45:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-18 19:45:14,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:45:14,628 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:45:14,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:45:14,629 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:45:14,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:45:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1045830572, now seen corresponding path program 1 times [2022-11-18 19:45:14,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:45:14,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526174019] [2022-11-18 19:45:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:45:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:45:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:45:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:45:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:45:14,927 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-11-18 19:45:14,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:45:14,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526174019] [2022-11-18 19:45:14,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526174019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:45:14,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:45:14,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:45:14,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670535136] [2022-11-18 19:45:14,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:45:14,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:45:14,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:45:14,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:45:14,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:45:14,931 INFO L87 Difference]: Start difference. First operand 112 states and 111 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:45:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:45:14,938 INFO L93 Difference]: Finished difference Result 112 states and 111 transitions. [2022-11-18 19:45:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:45:14,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 111 [2022-11-18 19:45:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:45:14,939 INFO L225 Difference]: With dead ends: 112 [2022-11-18 19:45:14,940 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:45:14,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:45:14,943 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:45:14,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:45:14,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:45:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:45:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:45:14,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:45:14,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2022-11-18 19:45:14,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:45:14,945 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:45:14,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:45:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:45:14,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:45:14,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-18 19:45:14,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-18 19:45:14,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-18 19:45:14,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-18 19:45:14,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-18 19:45:14,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-18 19:45:14,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-18 19:45:14,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-18 19:45:14,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:45:14,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:45:15,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-18 19:45:15,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:45:15,655 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:45:15,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-18 19:45:15,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:45:15,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:45:15,656 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-18 19:45:15,656 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-18 19:45:15,657 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (and (<= 10 |ULTIMATE.start_main_~a~0#1|) (= |ULTIMATE.start_main_~b~0#1| 0) (<= |ULTIMATE.start_main_~a~0#1| 10)) [2022-11-18 19:45:15,657 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-18 19:45:15,657 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-18 19:45:15,657 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 17 19) no Hoare annotation was computed. [2022-11-18 19:45:15,657 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2022-11-18 19:45:15,657 INFO L899 garLoopResultBuilder]: For program point sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-18 19:45:15,658 INFO L899 garLoopResultBuilder]: For program point sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-18 19:45:15,658 INFO L899 garLoopResultBuilder]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2022-11-18 19:45:15,658 INFO L899 garLoopResultBuilder]: For program point sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,658 INFO L899 garLoopResultBuilder]: For program point sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,659 INFO L899 garLoopResultBuilder]: For program point sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,659 INFO L899 garLoopResultBuilder]: For program point sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,659 INFO L902 garLoopResultBuilder]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2022-11-18 19:45:15,659 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,659 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,660 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-18 19:45:15,660 INFO L899 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,660 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 10) no Hoare annotation was computed. [2022-11-18 19:45:15,660 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-18 19:45:15,660 INFO L899 garLoopResultBuilder]: For program point L9-3(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,664 INFO L895 garLoopResultBuilder]: At program point L9-4(line 9) the Hoare annotation is: (and (or (not (<= 10 |sum_#in~m|)) (not (<= |sum_#in~n| 0)) (not (< |sum_#in~m| 2147483644)) (not (<= 0 |sum_#in~n|))) (or (not (<= |sum_#in~n| 5)) (not (<= |sum_#in~m| 5)) (and (< 4 sum_~n) (<= sum_~n 5) (<= 5 sum_~m) (<= sum_~m 5)) (not (< 4 |sum_#in~n|)) (not (<= 5 |sum_#in~m|))) (or (not (<= 1 |sum_#in~m|)) (not (<= |sum_#in~m| 1)) (not (<= 9 |sum_#in~n|)) (and (<= sum_~n 9) (<= 1 sum_~m) (<= sum_~m 1) (<= 9 sum_~n)) (not (<= |sum_#in~n| 9))) (or (not (<= |sum_#in~m| 4)) (not (<= |sum_#in~n| 6)) (and (<= sum_~m 4) (<= 4 sum_~m) (<= 6 sum_~n) (<= sum_~n 6)) (not (<= 4 |sum_#in~m|)) (not (<= 6 |sum_#in~n|))) (or (not (<= 2 |sum_#in~m|)) (not (<= 8 |sum_#in~n|)) (and (<= 8 sum_~n) (<= sum_~m 2) (<= sum_~n 8) (<= 2 sum_~m)) (not (<= |sum_#in~n| 8)) (not (<= |sum_#in~m| 2))) (or (not (<= 8 |sum_#in~m|)) (not (< |sum_#in~m| 2147483642)) (not (< 1 |sum_#in~n|)) (not (<= |sum_#in~n| 2)) (and (<= sum_~n 2) (<= 8 sum_~m) (< sum_~m 2147483642) (< 1 sum_~n))) (or (not (<= |sum_#in~m| 6)) (not (<= 6 |sum_#in~m|)) (not (<= |sum_#in~n| 4)) (and (< 3 sum_~n) (<= sum_~n 4) (<= 6 sum_~m) (<= sum_~m 6)) (not (< 3 |sum_#in~n|))) (or (and (< sum_~m 2147483643) (<= sum_~n 1) (< 0 sum_~n) (<= 9 sum_~m)) (not (< 0 |sum_#in~n|)) (not (< |sum_#in~m| 2147483643)) (not (<= |sum_#in~n| 1)) (not (<= 9 |sum_#in~m|))) (or (not (<= |sum_#in~m| 3)) (not (<= 7 |sum_#in~n|)) (not (<= 3 |sum_#in~m|)) (and (<= 3 sum_~m) (<= sum_~m 3) (<= 7 sum_~n) (<= sum_~n 7)) (not (<= |sum_#in~n| 7))) (or (and (< sum_~m 2147483641) (< 2 sum_~n) (<= sum_~n 3) (<= 7 sum_~m)) (not (<= 7 |sum_#in~m|)) (not (<= |sum_#in~n| 3)) (not (< 2 |sum_#in~n|)) (not (< |sum_#in~m| 2147483641))) (or (not (<= |sum_#in~n| 10)) (not (<= 10 |sum_#in~n|)) (not (= |sum_#in~m| 0)) (and (<= 10 sum_~n) (<= sum_~n 10) (= sum_~m 0)))) [2022-11-18 19:45:15,664 INFO L899 garLoopResultBuilder]: For program point L9-5(line 9) no Hoare annotation was computed. [2022-11-18 19:45:15,665 INFO L899 garLoopResultBuilder]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2022-11-18 19:45:15,669 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1] [2022-11-18 19:45:15,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:45:15,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:45:15 BoogieIcfgContainer [2022-11-18 19:45:15,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:45:15,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:45:15,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:45:15,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:45:15,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:45:03" (3/4) ... [2022-11-18 19:45:15,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:45:15,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2022-11-18 19:45:15,693 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 19:45:15,693 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-18 19:45:15,694 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:45:15,694 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:45:15,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:45:15,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:45:15,728 INFO L158 Benchmark]: Toolchain (without parser) took 12735.55ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 58.2MB in the beginning and 123.1MB in the end (delta: -64.9MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-11-18 19:45:15,731 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:45:15,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.05ms. Allocated memory is still 92.3MB. Free memory was 58.0MB in the beginning and 69.5MB in the end (delta: -11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:45:15,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.07ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 68.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:45:15,733 INFO L158 Benchmark]: Boogie Preprocessor took 30.05ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 67.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:45:15,733 INFO L158 Benchmark]: RCFGBuilder took 305.26ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 57.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:45:15,734 INFO L158 Benchmark]: TraceAbstraction took 12011.93ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 56.6MB in the beginning and 126.3MB in the end (delta: -69.7MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-11-18 19:45:15,735 INFO L158 Benchmark]: Witness Printer took 49.68ms. Allocated memory is still 161.5MB. Free memory was 126.3MB in the beginning and 123.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:45:15,739 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.05ms. Allocated memory is still 92.3MB. Free memory was 58.0MB in the beginning and 69.5MB in the end (delta: -11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.07ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 68.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.05ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 67.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.26ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 57.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12011.93ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 56.6MB in the beginning and 126.3MB in the end (delta: -69.7MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. * Witness Printer took 49.68ms. Allocated memory is still 161.5MB. Free memory was 126.3MB in the beginning and 123.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 12, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1595 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1581 mSDsluCounter, 1909 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1611 mSDsCounter, 338 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2233 IncrementalHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 338 mSolverCounterUnsat, 298 mSDtfsCounter, 2233 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 640 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1879 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=8, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 54 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 33 PreInvPairs, 33 NumberOfFragments, 322 HoareAnnotationTreeSize, 33 FomulaSimplifications, 322 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 720 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 812 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 908 ConstructedInterpolants, 0 QuantifiedInterpolants, 2341 SizeOfPredicates, 32 NumberOfNonLiveVariables, 670 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 2085/3161 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:45:15,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305de7f-e091-4aff-871c-e0bf52c1305d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE